baber/WOPTO huggingface dataset:
Patent EG-18404-A (EG)
Title: Process for preparing sertraline intermediates
IPC: C07C49/697
Filed: 1988-06-09
Granted: 1993-02-28
Abstract: A novel three-step process for preparing 4-(3,4-dichlorophenyl)-4-phenylbutanoic acid is disclosed, which involves (1) reducing 4-(3,4-dichlorophenyl)-4-ketobutanoic acid to 4-(3,4-dichlorophenyl)-4-hydroxybutanoic acid; (2) then converting the intermediate hydroxy acid formed in the first step to 5-(3,4-dichlorophenyl)-dihydro-2(3H)-furanone, and (3) thereafter reacting the resulting gamma-butyrolactone compound with benzene in a Friedel-Crafts type reaction to form the desired final product. The latter compound is known to be useful as an intermediate leading to 4-(3,4-dichlorophenyl)-3,4-dihydro-1(2H)-naphthalenone and ultimately, to cis-(1S)(4S)-N-methyl-4-(3,4-dichlorophenyl)-1,2,3,4-tetrah ydro-1-naphthaleneamine (sertraline), which is known to be a preferred anti-depressant agent in the field of medicinal chemistry. The aforementioned 5-(3,4-dichlorophenyl)-dihydro-2(3H)-furanone and 4-(3,4-dichlorophenyl)-4-hydroxybutanoic acid are both novel compounds. There is also disclosed a novel process for converting 5-(3,4-dichlorophenyl)-dihydro-2(3H)-furanone directly to 4-(3,4-dichlorophenyl)-3,4-dihydro-1(2H)-naphthalenone, as well as an alternate novel process for converting 4-(3,4-dichlorophenyl)-4-hydroxybutanoic acid directly to this same key intermediate.
Patent FR-1605470-A (FR)
Title: Suspension system for cross country vehicle - has individual cross connected wheel hydraulic or pneumatic systems and torsion bars
IPC: B60G21/02
Filed: 1966-03-26
Granted: 1976-07-23
Abstract: At each vehicle wheel, or near it, is a suspension system. This is worked so that opposite wheels can displace in the same direction, up or down, relative to the chassis. The suspension is hydropneumatic, hydroelastic, or pneumatic. There are fluid connecting pipes (10, 11, 12) between opposed wheels. The suspension includes front and rear longitudinal torsion bars, connected to the wheels. These bars are cross connected. The bars can be bent and have toothed wheels at one end.
Patent GB-1280792-A (GB)
Title: Improvements in or relating to footwear construction
Inventor: HEIGHT JOHN
IPC: A43B23/22
Filed: 1971-01-02
Abstract: 1280792 Boots &c HEIGHT HEELS OF LEICESTER Ltd 2 Jan 1971 200/71 Heading A3B A heel seat and waist reinforcement 10 of generally rigid synthetic plastics material, e.g. polypropylene, has a surface 17 of generally similar shape to the underside of the heel end of the human foot and has means for engaging an insole forepart (not shown). The front end of the reinforcement 10 is provided with a U-shaped recess 11 surrounding a dove-tail shaped tongue 12 which engages a correspondingly shaped aperture in the insole forepart to provide an interlock between the two parts. The bottom of the recess 11 is scored to improve the adhesive bond between the reinforcement 10 and the insole forepart. The edges of lower surface of the reinforcement 10 are stippled to provide a good adhesive bond between the reinforcement and other shoe parts.
Patent GB-951321-A (GB)
Title: Gearing for the travel mechanism of a movable steel structure, specifically a radio telescope
IPC: F16H57/022
Filed: 1963-01-02
Abstract: 951,321. Toothed gearing. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Jan. 2, 1963 [Jan. 30, 1962], No. 209/63. Heading F2Q. In gearing for the travel mechanism of a radio telescope, reduction gears 9, 8, 7, 6 and 5 are mounted in a U- shaped frame 14 which is adjustably located within a split casing 1, 2 by means of wedges 16, 17 in order to adjust the centre distance between the gear 5 and a driven gear 4 which is non-adjustably mounted in the casing 2. The U-shaped frame 14, which may be in three parts, is preferably sub-divided in the plane of the gearing, the two parts being held together by dowel pins 20 and located in the correspondingly shaped parting joint 15 of the casing 1, 2. The wedges 16, 17 are provided with adjusting screws 18, and after the adjustment for minimum backlash has been made the U-shaped frame 14 is secured to the casing part 2 by bolts 19. A driving electric motor 13 is connected to a flange 21 which has a spigoted connection with the frame 14 and is adjustably secured to the casing. In a modification, the input shaft 12 is located at a point B.
Patent GB-508692-A (GB)
Title: Improvements in or relating to radio frequency transformers
IPC: H03H7/01
Filed: 1938-01-04
Abstract: 508,692. Transformers. KOLSTERBRANDES, Ltd., and NEWMAN, L. G. Jan. 4, 1938, No. 222. [Class 38 (ii)] A radio frequency transformer comprises two relatively movable coils L1, L2 so arranged that in any position their axes are not contained in parallel planes and do not intersect. The coils L1, L2 may be mounted on members 2, 3 secured to a resilient strip 4 one on each side of a fold 7 therein, the angle between the portions of the strip 4 on which the members 2, 3 are mounted being varied by a screw 8 operated by a knob 11 through gearing 10. The screw 8 may contact the strip 4 at the fold 7 as shown, or may be applied to the strip 4 at P, the strip being held by a stop or other device at O. The apparatus may be arranged in a screening container 1.
Patent GB-655452-A (GB)
Title: Improvements in or relating to an article feeding device
IPC: B24B5/35
Filed: 1948-01-03
Abstract: 655,452. Feeding cylindrical articles in succession. POTTS, F. C. (Landis Tool Co.). Jan. 3, 1948, No. 237. [Class 117] A device for feeding a plurality of cylindrical articles to a point of operation of a machine such as a centreless grinding machine is provided with guiding means for receiving the articles and directing them to the point of operation which guiding means includes a vibrating platform 22 having a hole 21 therein of a diameter greater than that of the article but less than the diagonal of the plane through the axis of the article and means such as a circular hopper 11 for receiving the articles 13 to be fed, the hopper being aranged and vibrated in such manner e.g. as described in Specification 655,453, as to cause the articles to be moved up a narrow curved track 20 on the walls of the hopper to the platform 22. The surface of the platform 22 is inclined in the direction of the hole 21 and the edge of the hole is curved downwardly to facilitate entry of the articles. The amplitude of vibration of the platform 22 may be different from the amplitude of vibration of the hopper and to this end the platform is mounted by a curved flexible tail-piece 34 on a bracket 36 secured to the hopper 11. A flexible bracket 38 is provided on hopper 11 between bracket 36 and platform 22 and serves to damp the vibration of the platform. The articles pass through hole 21 into tube 30 which is vibrated independently of the platform to convey the articles to the throat between the rolls of the grinding machine. The feed mechanism assembly may be adjusted vertically as well as in two perpendicular related directions in the horizontal plane so as to adjust the delivery of the articles . with respect to the point of operation between the grinding rolls.
Patent GB-111374-A (GB)
Title: Improvements in and relating to Aeronautical Machines.
Inventor: PORTER JAMES ROBERTSON
IPC: B64C27/04
Filed: 1917-01-05
Abstract: 111,374. Porter, J. R. Jan. 5, 1917. Floats for aerial machines. - Floats for helicopters and like aerial machines consist of annular collapsible structures of triangular cross-section. The frame of the structure comprises upper rings 1 connected together by radial tubes 2 which are connected by rods 4 to a lower ring 5, the whole being covered with canvas &c. 6. The rods 4 are fitted with springs and arranged to slide through sockets 3, so that the springs absorb the shock of landing, the air within the structure being partly compressed and partly escaping through holes or valves at the top. Upward movement of the rods 4, when alighting on water, is prevented by actuation of bell-cranks 9 so that they come over the upper ends of the rods.
Patent GB-425849-A (GB)
Title: Process for sewage or other waste-water treatment
IPC: C02F1/28
Filed: 1934-01-03
Abstract: Waste water is filtered through heavy peat, brown coal or lignite which has been irrevocably coagulated to a powdered or flaky condition by chemical treatment, heat treatment or freezing.  Lime is mentioned as a suitable chemical agent for coagulating the material. When its capacity for absorption has become exhausted the filtering material may be used as manure.
Patent GB-264649-A (GB)
Title: Improvements relating to artists' easels
IPC: A47B97/08
Filed: 1926-01-05
Abstract: 264,649. Rudd, C. E. B. Jan. 5, 1926. Easel stands.-A collapsable artists' easel is ccnnected to a box 6, which may be used as a seat, by hinged links 7 which permit the collapsed easel to lie flat against the box. The collapsed easel may form a lid for the box. The easel consists of a frame 13 slidably arranged in a frame 10, a board 16 being hinged to the top member of the frame 13 and supported in an inclined position by a detachable stay 17 and links 20. The frames are supported by a detachably hinged telescopic leg 22 and a detachable stay 27, the leg 22 and stay 27 being stored in the box to which the easel is collapsed. The box may be provided with carrying straps and a support for a sunshade.
Patent GB-660031-A (GB)
Title: Improvements in or relating to air-operated devices for viscous, plastic or like compositions
IPC: F16N5/02
Filed: 1949-01-06
Abstract: 660,031. Extruding viscous substances by compressed air. B. B. CHEMICAL CO., Ltd., PUDDEFOOT, L. E., and WATTS, A. G. Jan. 5, 1950 [Jan. 6, 1949], No. 348/49. Class 102 (ii). A device for extruding viscous compositions comprises a chamber 11, for the composition, containing a piston 35 operated by compressed air, controlled by means such as a trigger 43, for extruding the composition through a nozzle 17, mechanical means operating when the air supply is cut off to hold the piston against further movement. A collet 63, carried by a piston rod 37 and movable with the trigger through trunnion pins 67, has four resiliently mounted jaws 65 which are pressed inwardly by a conical recess in the end casting 20 when the trigger is released. Air is supplied through a passage 51 in a handle 22 and when the trigger is pressed against spring 71 a valve 47 is opened to admit air through passage 53 into the chamber. When the trigger is released an air release valve 59 is opened by a rod 55, to exhaust the chamber. The composition is enclosed in a container 23, having a slidable end plate 29 engaged by the piston, the container being inserted in the chamber by unscrewing the end casting 20. The piston rod 37 may be graduated as at 73 to indicate the quantity of composition in the chamber. In an alternative embodiment the trigger may have an intermediate release position in which the air inlet valve 47 is closed and the collet is gripped on the rod, but the release valve is maintained closed to prevent the waste of the air in the chamber. Specification 537,374 is referred to.
Patent GB-156489-A (GB)
Title: Hot-blast valve
IPC: C21B9/12
Filed: 1921-01-05
Abstract: 156,489. Freyn, Brassert, & Co., (Assignees of Mathesius, W.). Sept. 9, 1916, [Convention date]. Sliding valves; cooling; spindles. - A gas valve for use with hotblast stoves is constructed as a slightly tapered disc or gate sliding between two parallel seats, or vice versa. The valve casing comprises three separate portions 5<a>, 5<b>, 5<c>, the middle and lower portions being provided with horizontal and vertical flanges for connection to one another and to the pipe main. All flanges are provided with tongue and groove joints and with soft packing in the grooves. The valve 11 is hollow and is carried bv two pipes 12, 13 which slide in glands 14. Cooling water is circulated through the pipes and the valve, and baffles 11<a> are provided in the valve. The valve seats are formed by a pair of parallel annular members 17, 18, and the valve 11 is slightly tapered downwards, so that when swung slightly about its point of support 14 either side forms a parallel closure with its corresponding seat (Fig. 6). The initial adjustment of the valve in its vertical position is effected by a pair of tapered washers 36, 37 which may be turned against one another to swing the valve slightly. Accumulations of solid matter are removed through the counterweighted valve 28 which co-operates with a renewable seating 27.
Patent GB-176931-A (GB)
Title: Improvements in or relating to apparatus for supplying powdered or pulverulent fuel to furnaces
IPC: F23K3/00
Filed: 1921-01-05
Abstract: 176,931. Powdered Fuel Plant Co., Ltd., (Soc. Anon. la Combustion Rationelle). Jan. 5, 1921. Fuel, supplying.-Apparatus for supplying powdered fuel to furnaces or groups of furnaces situated in scattered positions in a works consists of a a preliminary treatment plant to convert the coal into a granular, dry, and clean condition situated at a central position in the works and of a capacity sufficient for the whole of the furnaces and transporting plant for conveying the granular fuel to storage means in connection with each furnace or group of furnaces where it is pulverized immediately before use. As shown in Fig. 2, raw coal from a hopper 3 is fed to a crusher 5 and magnetic separators and is raised by an elevator 7 to a hopper 8 from which it passes to a rotary drier 9 and thence by way of an elevator 10 to a storage hopper 11. Granular coal in a dry and clean condition is fed by compressed air from a reservoir 13 through conduits such as 12 to storage means comprising a cyclone collector 14 in connection with each furnace or group of furnaces, and is pulverized in apparatus 15 and fed as required to the furnace 16.
Patent GB-1146570-A (GB)
Title: Device for belt conveyor
IPC: B65G43/02
Filed: 1967-01-30
Abstract: 1,146,570. Controlling endless conveyers. FRANZ CLOUTH RHEINISCHE GUMMIWARENFABRIK A.G. 30 Jan., 1967 [9 April, 1966], No. 437/68. Divided out of 1,146,108. Heading B8A. A control system for the detection of longitudinal slitting in rubber conveyer belts F, of the type having transverse, electrically conducting inserts Q, comprises control circuits Stl, St2 with respective pairs of contacts 1a, 1 and 2a, 2b for engagement with the opposite ends of the lateral inserts and a further circuit St3 including contacts 1b, 2b for indicating the condition of the insert. The circuits SE 1, SE2 have indicating devices (not shown) to indicate the completion of the respective circuit by the inserts and thus a good contact between the contacts 1a, 1b 2a, 2b and the respective ends of the insert. The arrangement being that if the circuit St3 is not closed by an insert, but circuits St1, St2 are, then this indicates a broken insert, if, however, one of the circuits Stl, St2 also fail to be closed then a faulty contact or a combination of a broken insert and a faulty contact is diagnosed. Restoration of the contact will thereby enable the condition of the insert to be diagnosed.
Patent GB-1336241-A (GB)
Title: Purification process
IPC: B01D53/64
Filed: 1971-01-05
Abstract: 1336241 Removing metals from liquids or gases OSAKA SODA CO Ltd 5 Jan 1971 [5 Feb 1970 26 Feb 1970 (2) 13 April 1970 7 Aug 1970] 469/71 Headings C1A and C1C A process for removing metals from a gaseous or liquid metal-containing material comprises contacting the material with a carrier on which is adsorbed an organic compound which is capable of forming a mercaptide of the metal to be removed and which either contains an -SM group where M = H or alkali metal or an group or is an N, N<SP>1</SP>-substituted thiourea in which the substituents are bonded to nitrogen through carbon atoms. The carrier may also have adsorbed thereon an organic compound which is capable of forming a chelate of the metal to be removed and which contains an -OH group and -N = and/or -NH 2  groups. The material may be treated with an anion exchange resin prior to treatment with the carrier. The metal-containing material may be an aqueous alkali solution, hydrochloric acid, hydrogen, air or a waste gas or water formed in the smelting, plating and chemical industries. The metal to be removed may be Hg, Au, Bi, Cd, Co, Cr, Cu, Ni, Pb, Zn, Ag, Mu, Fe, Mo, Ti, Mg and Al. The carrier may be active carbon, bone black, silica gel, silica/alumina gel, zeolite, alumina, magnesia and sand. Compounds which may be adsorbed on the carrier include 2-aminoethanethiol, butylmercaptan, cyclohexylamine salt of a mercaptobenzothiazole, L-cysteine, 2,3-dimercapto-1-propanol, glutathione, 2 mercaptobenzothiazole and its alkali metal salts, 2- mercaptoethanol, dl-mercaptosuccinic acid, pipecolinepipecolyl dithiocarbamate, piperidine pentamethylene dithiocarbamate, thioacetic acid, thioglycolic acid and its alkali metal salts, thionalide, thiophenol and its alkali metal salts, isopropyl xanthic acids and its alkali metal salts, Bismuthiol II, p-dimethyl-aminobenzylidenerhodanine, phenylene-, ethylene-diphenyl-, diorthotolyl- and trimethyl-thiourea, anthranilic acid, 8-hydroxyquinoline acid 8-hydroxyquinaldine.
Patent GB-1359581-A (GB)
Title: Optical trackers
IPC: G01S3/786
Filed: 1973-01-05
Abstract: 1359581 Phuto-electric detector BRITISH AIRCRAFT CORP Ltd 5 Jan 1973 [5 Jan 1972] 498/72 Heading G1A [Also in Division H4] An optical tracker for tracking a distant light source, such as a flare carried by a missile, comprises a cylindrical lens which projects an image of the source, in the form of a focused line of light, upon the screen of a photo-electric detector. The screen has at least one pair of distinct light-sensitive areas, which are so arranged that their respective electrical outputs vary continuously and differentially as the line of light moves transversely to the direction of its length. Sum and difference signals are obtained from the detector outputs, and are used to derive error signals for tracking. The arrangement enables false error signals due to atmospheric shimmer to be reduced. In one form of screen a rectangular light-sensitive area 12, Fig. 2, is split by a diagonal line 13 to provide two triangular areas 12A, 12B. The focused line of light 11 normally lies centrally between the longer edges of the rectangle, producing equal outputs from the two areas. When it moves transversely, the output from one area is reduced, and the output from the other area is correspondingly increased. In another form of screen a rectangular light-sensitive area is divided into two areas each comprising a plurality of triangles, as shown in Fig.4. A form of screen is also described Fig.8 (not shown) in which a rectangular light-sensitive area is split into two by a single diagonal line as in Fig.2 and has a narrow central strip removed, in which is provided a multi-diagonal arrangement similar to that of Fig.4. An azimuthal tracker unit comprises a cylindrical lens 10, Fig.7, with a vertical axis 21 about which a support 20, in the form of a sector of a cylinder, may be rotated by a servomotor through a shaft 22 and worm gearing 23. A potentiometer pick-off 24 enables the position of the support 20 to be monitored. A detector 12, of the kind described with reference to Fig. 8, is symmetrically mounted within the support 20, and two infrared sources 25 are provided which are used intermittently during a tracking operation to illuminate the detector 12, to enable overall balance to be maintained. A similar orthogonally disposed unit may be provided for tracking in elevation. Circuitry for a tracker unit is described with reference to Fig.9 (not shown). This includes provision for switching to the inner areas of the detector 12 as the tracker nears the line of sight to the source, normalizing the difference signal by division by the sum signal, and periodic balancing making use of the pilot sources. In another embodiment, the detectors are fixed relative to their respective cylindrical lenses Fig.10 (not shown).
Patent GB-104675-A (GB)
Title: Improvements in or relating to Electric Welding Machines.
Inventor: MURRAY THOMAS EDWARD
IPC: B23K11/24
Filed: 1917-01-10
Abstract: 104,675. Murray, T. E., and Woodrow, H. R. March 8, 1916, [Convention date]. Heating by electricity.- A machine for electrically welding the halves of a wheel hub comprises electrodes actuated to clamp the work by a solenoid, and when clamped further solenoids act through toggle mechanism to apply greater pressure during the welding. A series of switches is arranged for semi-automatic operation. The transformer B has a pentagonal core and five primary windings 28, each in two layers, surrounded by a secondary winding 29. The secondaries are connected to a common terminal 30 in electrical connexion with the lower electrode C, and to five studs 31 and contact plates 33. When the upper electrode D is lowered to clamp the work, the circuits are completed through brushes 37. The electrode D is carried by a frame sliding in guides, and connected to balance weights which normally maintain the frame in the raised position. Main switches M, N, Fig. 17, control sources of alternating and direct supply respectively. A switch Q is closed at l to energize a solenoid F, which, through the lever 57, lowers the sliding frame, straightening out the toggles I connected by links J to bell-cranks G connected to solenoids H. During the descent of the frame, the links and bell-cranks are loosely connected by pins and slots 76. The bell-cranks carry solenoids L, Fig. 10, when the frame reaches the position shown in Fig. 3, springs 74 shoot the cores-carrying pivots 73 through holes in the links, which in this position of the parts register with the pivots and thus connect the toggles to the solenoids H. When all the pivots 73 are in position, four contacts 75 in series with the solenoids H are closed. The welding-pressure is regulated by a resistance t. At the same time, the solenoid n<1> of the switch 0 is energized, closing the switch. The welding-transformer B is then supplied through the switches 0, P in series. The duration of the welding-current is limited by a watt-meter relay W, controlling a switch o and having a series coil connected to a transformer a and a shunt coil connected across the terminals b, c of the switches M, O. When the switch o closes, the solenoid n of the switch P is energized, thus opening the switch and breaking the welding- circuit. The switch Q is then moved over to contact k, energizing the solenoids L to withdraw the pivots 73 and break contact at 75. The frame then rises. At the same time, the switch P closes and the switch U opens, completing the cycle.